US2236809A

US2236809A - Standardized shop equipment

Info

Publication number: US2236809A
Application number: US256887A
Authority: US
Inventors: Ciles M Turner
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-09-14
Filing date: 1939-02-17
Publication date: 1941-04-01
Anticipated expiration: 1958-04-01

Description

G. M. TURNER 2, ,809

STANDARDIZED SHOP EQUIPMENT April 1, 1941.

2 Sheets-Sheet 1 Original Filed Sept. 14, 1955 0 v A; /Z) I /e I 64 I g /f 54 5/ 1 J INVENTO'R /uss M. Tue/v52 April 1, 1941. G. M. TURNER STANDARDIZED SHOP EQUIPMENT Original Filed Sept. 14, 1955 2 Sheets-Sheet 2 INVENTOR 6/4555 M.

M ATTORNEYS Patented Apr. 1, 1941 STAN D ARDIZED' SHOP EQUIPMENT Giles M. Turner, Milwaukee, Wis.

Original application September 14, 1935, Serial N0..40.,599, now Patent No. 2,148,090, dated February 21, 1939. Divided and this application February 17, 1939, Serial No. 256,887

3 Claims. (Cl. 280-46) My invention relates to improvements in standardized shop equipment.

It is the object of my invention to provide a lifting dolly for one end of a tray, drawer or box whereby to convert such a member into a transport unit.

More particularly stated, it is the object of my invention to provide a lifting dolly which is not only more easily engageable and operable with a tray or other transport unit in shop practice, but also to dispose the lifting dolly wheels in such relation to the portion of the dolly which directly engages the tray that the tray may be no hindrance to the steering motion of the dolly.

Another object of my invention is to so 'con'- struct the hook of a lifting dolly for the purpose described as to make its interaction with the dolly somewhat pendular and thus facilitate the engagement of the hook with a transport tray.

In the drawings:

Fig. 1 is a side elevation of my tray with a creeper dolly and my new lifting dolly engaged therewith.

Fig. 2 is a plan view of the structure shown in Fig. 1.

Fig. 3 is a perspective of one end of my standardized tray to receive and be engaged by my new lifting dolly.

Fig. 4 is a perspective of my lifting dolly.

Fig. 5 is a detail of a pivot bolster for my lifting dolly in engagement with a handle of a tray.

Like parts are identified by the same reference characters throughout the several views.

This is a division of my Patent No. 2,148,090 dated Feb. 21, 1939.

As stated above, one of my standard units for factory equipment is a tray, drawer, or box H], which I shall hereinafter refer to as a tray, it being understood that my invention relates to attachments for any similar form of storing, carrying, or transporting element wherein the element must be kept substantially horizontal and may not be tilted to an angle such that articles on the tray will be dislodged over shallow walled margins.

My standardized unit is provided with side walls II and I2 and end walls I3 and M, with a corner brace l5 at each corner, whereby to reenforce the tray. A handle l6 secured to the corner braces I5 is provided centrally with a depression I! and outwardly extended margins I8, since the handle is formed of metal with a channel shape, as shown clearly in the drawings.

Such a tray as above described may be filled with exceedingly heavy material which would tax the strength of any workman were he to attempt to lift it by the handles l6, and I therefore provide my new creeper dolly 20 and my lifting and steering dolly 2| for ready attachment to the tray I 0, as willnow be described. 7

I provide for connection with either end of the box I 0 a dolly which I have termed a creeper dolly," since it is constructed for use closely adjacent the floor or other supporting surface for the box l0, and this dolly is, intended to provide for merely a slight elevation of the end M of the box, to which, for example, I have shown it attached.

With the creeper dolly inplace upon the end 14 of the tray [0, it is desirable not only to place a wheeled element under the end l3, but it is also desirable to elevate that end of the tray sufficiently to cause the end I4 to clear the supporting surface 40. I therefore provide a two-wheeled drawing, guiding, and lifting dolly 2|, shown most clearly in Figs. 1 and 4. I prefer to form the frame of this dolly out of pressed metal to provide lateral extensions 5| and 52 extending from a central raised portion 53 which is substantially U-shaped in cross section. Forwardly and upwardly from this portion 53 of the frame 50 I extend a handle 54 of suitable length and configuration for easy handlingby a workman.

The dolly 2| is provided with brackets 55 in which wheels 56 are mounted upon pins 51.

Upon the central raised portion 53 of the frame 50 I provide a hook 58, which includes a forwardly and upwardly extending spud 59, a weight-supporting table 60, a cam-shaped handle abutment 6 I, and a platform 62. This platform has a plane under surface to bear upon the plane upper surface of a turntable 63 secured to the top of the raised central portion 53 of the dolly. A kingpin 64 provides a pivot mounting for the entire hook 58, which may swing freely about pivot pin 64, special not being made, however, of the fact that the greater portion of the weight of the material in the hook 58 is eccentrically mounted, whereby to tend to center the entire hook 58 by gravity when the dolly is in inclined position.

The cam face 65, inclined downwardly toward the weight-supporting table, is very slightly shouldered at 66, and it is against this shoulder that the edge 18 of handle l6 of the tray bears when the spud 59 of hook 58 is in the depression I! of the handle. This is shown clearly in Fig.5. To thus engage the spud 59 with the handle the workman may tilt the dolly 2| by raising the handle 54, and because of the pendular motion of the hook 58 the spud 59 is naturally disposed in proper position to hook under handle iii of the tray. A downward thrust on the handle 54 will then elevate the handle I6 and at the same time cause the outer margin [8 of handle IE to abut the shoulder 65 and cramp the spud 59 into position in the depression I'l. With the creeper dolly erect under the handle IS the hook 58 cannot be displaced laterally on the handle 16.

The elevating motion incident to the lowering of the handle 54 when the hook 58 is engaged centrally with the handle l6 brings the axes of wheels 56 directly under the weight supporting table 60 or slightly rearwardly thereof toward the tray so that if a workman should accidentally release his hold upon the handle 54 the central raised portion 53 of the elevating dolly will contact the lower margin of the end l4 of the tray.

When the elevating dolly 2| is in engagement with the handle IS the end l3 of the tray is elevated sufficiently to clear the lateral extensions 5| of the elevating dolly. Steering action therefore is easy and directional control in the hands of the workman is complete.

From the above description it will be apparent that a tray 10 may be converted into a transport unit with ease and facility, since with the creeping dolly in the position shown in Fig. 3, a workman may take the lifting and steering dolly, and by inclining the handle 54, may dispose the spud 59 in position under handle IS with the spud opposite depression ll. By pulling the handle 54 downwardly into operating position, a lifting or elevating action is accomplished upon the hook 58, whereby to positively engage the central portion of the handle l6 upon the hook and at the same time raise the end [4 of the tray sufficiently to place the end l3 of the tray in load bearing relation to the wheels 3| of the creeper dolly.

The entire assembly is then a complete transport unit which may be moved and stored readily to a new location, where, if necessary, the workman may restore the tray to a position upon the floor or other supporting surface by tilting the handle 54 upwardly and thus lowering the end I3 of the box to the floor and disengaging the spud 59 from the depressed portion [1 of the handle. Simultaneously with such an operation the weight is removed from the wheels 3|. The lifting and steering dolly is then released for use with other trays or other standard units.

I claim:

1. The combination with a tray having a projecting member, of a wheeled lifting dolly provided with a hook to engage the projecting memher, said hook being in turntable relation to the dolly upon a substantially vertical axis when the dolly is in working position in engagement with the tray, the hook being provided with eccentric weight whereby, when the dolly is tilted, to present the hook for engagement with the projecting member.

2. A tray having a handle with a margin outwardly extended from the tray and a depressed portion opposite said margin, a dolly attachable to the tray and provided with a hook including a stud for reception in the depression, and a shoulder for abutment by said margin to lock the hook to said handle.

3. In a wheeled dolly having a handle and an upward extension adapted to rockably engage and lift a load bearing unit, means for accomplishing the engagement comprising a hook mounted on a normally vertical axis on the upward extension, the hook comprising a weight eccentric to its axis, whereby to move pendularlv to facilitate the engaging operation.

GILES M. TURNER.